Inventor · disambiguated record
Toshifumi Yasui
Also filed as: YASUI TOSHIFUMI
19 granted patents·5 pending applications·25 citations·filing 2008–2023
90Inventor score
Files withSONY CORP9YASUI TOSHIFUMI7SONY GROUP CORP5KANEDA KAZUMASA1SONY SEMICONDUCTOR SOLUTIONS CORP1
Top patents by PatentIndex Score
24 records- 0186US7924684B2Object lens, optical pickup, and optical disc deviceSONY CORP·Filed 2008·Granted Apr 12, 2011·6 cites·25 claims
- 0284US10659669B2Projection display unitSONY CORP·Filed 2017·Granted May 19, 2020·4 cites·20 claims
- 0378US8064315B2Condensing optical device, optical pickup, and optical disc apparatusYASUI TOSHIFUMI·Filed 2009·Granted Nov 22, 2011·4 cites·14 claims
- 0477US9176367B2Illumination device and display unit including a light source section, first and second uniformization optical members, an optical device, and a drive sectionSONY CORP·Filed 2013·Granted Nov 3, 2015·3 cites·25 claims
- 0574US8116188B2Objective lens, optical pickup and optical disk apparatusYASUI TOSHIFUMI·Filed 2010·Granted Feb 14, 2012·4 cites·8 claims
- 0671US9335558B2Illumination device and display deviceYASUI TOSHIFUMI·Filed 2012·Granted May 10, 2016·2 cites·20 claims
- 0766US10459575B2Irradiation optical system and projectorSONY CORP·Filed 2015·Granted Oct 29, 2019·1 cites·11 claims
- 0865US10908740B2Irradiation optical system and projectorSONY CORP·Filed 2019·Granted Feb 2, 2021·0 cites·20 claims
- 0958US8233370B2Objective lens, optical pickup and optical disc apparatusYASUI TOSHIFUMI·Filed 2010·Granted Jul 31, 2012·1 cites·11 claims
- 1055US11927846B2Liquid crystal display device and electronic apparatusSONY GROUP CORP·Filed 2020·Granted Mar 12, 2024·0 cites·19 claims
- 1155US2025224544A1Lens, imaging device, and light emitting deviceSONY GROUP CORP·Filed 2023·Application pending·0 cites
- 1253US11720012B2Optical systemSONY GROUP CORP·Filed 2020·Granted Aug 8, 2023·0 cites·20 claims
- 1353US11181724B2Projection optical system and projectorSONY CORP·Filed 2018·Granted Nov 23, 2021·0 cites·20 claims
- 1452US9523908B2Image projection apparatus and image projection methodSONY CORP·Filed 2014·Granted Dec 20, 2016·0 cites·17 claims
- 1551US2024413181A1Light deflecting device and distance measuring deviceSONY SEMICONDUCTOR SOLUTIONS CORP·Filed 2022·Application pending·0 cites
- 1650US12443098B2Optical element, illumination apparatus, and projective display apparatusSONY GROUP CORP·Filed 2021·Granted Oct 14, 2025·0 cites·18 claims
- 1749US2025138308A1Optical system and display deviceSONY GROUP CORP·Filed 2023·Application pending·0 cites
- 1847US11835696B2Optical system and projectorSONY CORP·Filed 2019·Granted Dec 5, 2023·0 cites·18 claims
- 1947US8102749B2Object lens, optical pickup, and optical disc deviceKANEDA KAZUMASA·Filed 2010·Granted Jan 24, 2012·0 cites·28 claims
- 2046US8864317B2Projection displayYASUI TOSHIFUMI·Filed 2012·Granted Oct 21, 2014·0 cites·14 claims
- 2144US2013050285A1Illumination device and display deviceTAKAHASHI KAZUYUKI·Filed 2012·Application pending·0 cites
- 2243US9239463B2Illumination device and display unit for suppressing luminance unevenness and interference patternYASUI TOSHIFUMI·Filed 2012·Granted Jan 19, 2016·0 cites·18 claims
- 2339US2020192205A1Illumination unit and display apparatusSONY CORP·Filed 2017·Application pending·0 cites
- 2436US8139463B2Objective lens, optical pickup, and optical disc apparatusYASUI TOSHIFUMI·Filed 2010·Granted Mar 20, 2012·0 cites·12 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →